Section M, N, and O

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"Section M, N, and O"

Each fiber is inclosed in a
delicate membrane (the sarcolemma), is made up of alternate
segments of lighter and darker material which give it a transversely
striated appearance, and contains, scattered through its substance,
protoplasmic nuclei, the so-called muscle corpuscles.

The nonstriated muscles are involuntary. They constitute
a large part of the walls of the alimentary canal, blood vessels,
uterus, and bladder, and are found also in the iris, skin, etc. They
are made up of greatly elongated cells, usually grouped in bundles or
sheets.

2. Muscular strength or development; as, to
show one's muscle by lifting a heavy weight.
[Colloq.]

3. [AS. muscle, L. musculus a
muscle, mussel. See above.] (Zoöl.) See
Mussel.

Muscle curve (Physiol.), contraction
curve of a muscle; a myogram; the curve inscribed, upon a prepared
surface, by means of a myograph when acted upon by a contracting
muscle. The character of the curve represents the extent of the
contraction.

Mus"cled (?), a.

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"Section M, N, and O"